集しゅう団だん安あん全ぜん保ほ障しょう

noun

collective security

A political concept where nations agree to respond jointly to aggression against any member. Used in international relations and political science contexts.

• 国こく連れんは集しゅう団だん安あん全ぜん保ほ障しょうの理り念ねんに基もとづいて設せつ立りつされた。

  The United Nations was founded on the principle of collective security.